I think your position is valid.
Note: Apple restricts apps uploaded with Xcode, (depending on how it is signed I believe) to 7 days or 1 year. adb currently doesn't have this limit.
But what if they find that somebody made 'sideloading' 'too easy' again. E.g. somebody could come up with the idea of running adb or an adb emulator on another phone, or even a small hardware dongle, integrating it with a pretty UI that looks like a regular app shop. Then their currently proposed new rule would become ineffective and due to whatever thought process they arrived at their current conclusion, could place similar limits on adb.
> E.g. somebody could come up with the idea of running adb or an adb emulator on another phone, or even a small hardware dongle, integrating it with a pretty UI that looks like a regular app shop.
That idea already exists and is called Shizuku. You don't even need another phone, because ADB also has a mode for wireless debugging via the network, so you can just use that to locally connect to the ADB daemon running on your own phone.